Dishwashing machine



J1me 1931- R. B. SHOEMAKER ET AL 1,810,374

DI SHWASHING MACHINE Filed Aug. 50, 1927 2 Sheets-Sheet 1 INVENTORSShe/mam B I v J1me 1931- R. B. SHOEMAKER ET AL 1,310,374

DISHWASHING MACHINE Filed Aug. 30, 1927 2 Sheets-Sheet 2.

' IN VEN TOR5 NEY Patented June 16, 1931 nurse orator I RAYMOND B.SHOEMAKER AND CHARLES I. LAWRENCE, OF'NEW YORK N. Y.

nr'snwnsnrne' MAoHr'NE Application fi1ed AiIgu'st30, 1927-. Serial at;216,409:

Our invention relates to improvements in apparatus of the character setforth in our application 87,222, filed Februaryl0,1926,

'which has now eventuated, into Patent 5 1,717,417 dated June" 18, 1929.The main obj ect of' the invention is to simplifytheconstructionhre'nder it more'durable and reliable and to facilitatethe construction,adjustment and repair. Another object is to provide 10means for regulating thewa'ter pressure.

reservoir for liquid soap .or other chemical 25 which it may be desiredto mix with the water or. other liquid. For convenience we willhereinafter refer to the'liquidxas water and to the solution as liquidsoap, or soap solution.

The outlet member at the bottom of the so casing is also connected withthe interior of the soap bag'and providedzwith-a valveby which thepassage of the soap solution to the outlet may be controlled. The'soapbag is spaced apartfrom the bottom of the casing by a perforatedraised platform, and a'control or throttle member is provided forregulating the flow of water from thecasing and hence regulating thepressure on the reservoir. The soap bag is detachably secured inth'ecasin'g between the platform at the bottom and the removable coverat the top. A tubular extension from the outlet member provides aconvenient meansfo'r securing the cover in place. I 7

Fig. 1 is a plan view of one form of'apparatus embodying our invention.

Fig. 2 is'a front view and'partialvertical section of the same. I

Fig. 3 is a transverse sectional view'on a vertical plane showing the 1method of securhasa central passage 23-which extends from ing the partstogether and controlling? the outlet.

Fig. i is ah'orizontal sectional view of the tubular connection to theoutletmember on thepla ne' of the line4-4 of Fig 3. a

Fig. 5 is a'horizontal'sectional view of the outlet member onthe planeof the line 55 of Fig. 3.

Fig. 6 is a detail View of the regulating member.

The casing 10 may .be of any'suitable form andis ada'ptedto be'supportedin any suitable manner, as forinstance, from the faucets 11 and12 forthe hot and coldwate'r.

The nozzle or dischargemember 13'is preferably secured in'a suitablemanner within a couplingmember l l'in sucha-mariner that thenozzle maybeiswu'ng fromside to'side.

This coupling collar is preferably screwed on to the lower endrof anoutlet member 15 whichin turn is secured in any suitable man ner in thebottomof thecasinglO." This outletmember has oneor more channels16;extending vertically through itythrough which water may pass from thebottom of the cas- .ing. to the discharge nozzle.

The effective size'of the passages 16 may be controlled by the rotationof a regulating plate 17 whichis'mounte'd on the outletmember 15 withinthe casing and adapted to be set to provide any'desired: area of outlet.This plate 17 may be clamped'in' place by a screw 17 a in a slot 176'.

A perforated platform 18 is mounted on the outlet member 15 forsupporting the lowerwall oflthe soapbag l9 and holding it spaced apartfrom the bottom of the casing so that water can pass around-thesides-ofthe casing to the outlet passageslG. The upper end of the I soapbag is preferably provided with a C'OllZII'QO adapted tobe seated aroundthe mouth of the opening 21in the top of the casing. i

The upper end of the outlet member 15" preferably has" a" screwtl'irea'dedportion-22 which passes through an opening in the" bottom ofthe bag 19. The bag may be reinforced'by a washer 19a. The outlet.member its=upper endto its lower end' but is inter- 100 cepted by apassage for the valve 24 which has a transverse passage 25 through whichthe soap can pass when the passage 25 is in alignment with the passage23. A small tube 26 is seated in the upper end of the outlet member 15and provided with openings 27. A tube 28 is screw threaded interiorly atboth ends and the lower end is adapted to be screwed on to the tip 22 ofthe outlet member 15 so as to clamp the bottom of the bag 19 against theplatform 18 and hold the bag in place. This tube 28 is provided withopenings 29 through which soap solution may pass from the interior ofthe bag through the openings 27 to the passage 23 in the outlet member.

The cover 30 of the casing rests on the collar 20 of the bag and isclamped in place by a knob 31 which has a threaded stem 32 which screwsinto the upper end of the tubular extension 28. Vhen it is desired tofill the bag theknob 31 is unscrewed and the cover 30 removed whereuponthe bag may be filled by simply pouring the soap solution through theopening in the top. In case the bag is to be removed for repair orreplacement the tube 28 is unscrewed using for this purpose the thumbpieces33, thus releasing the bottom of the bag which may be pulled outfrom the opening at the top of the casing. lVhen a new bag is to beinserted the hole in its bottom is registered with the inner tube 26which serves as a guide while the bag isbeing inserted. The outer tube28 is then placed over the tube 26 and screwed into place on the upperend 22 of the outlet member 15.

YVhen the apparatus is in use hot or cold water ora tempered warm watermay be drawn from the nozzle 13 by proper adjust ment of the faucets 11and 12. hen a soapy solution is desired the valve 24 is opened so thatthe soap solution can pass from the interior of the bag 19 through theopenings 29 and 27 and the passages 23 and 25. The pressure of thewater, hot or cold as the case may be, against the outside of the bag 19serves to force the soap solution out at a rate which is substantiallyproportionate to the pressure. Vhen a soap solution is no longer desiredthe valve 24 is simply close-d so that "no more soap is admitted to thenozzle 13.

We claim:

'1. In an apparatus of the character described the combination withoppositely directed hot and cold liquid supply pipes, of a mixingchamber into which said supply pipes empty, means for controlling thesupply of liquid from each pipe to temper a mixture of liquids from saidpipes in said chamber, a container within said chamber and between saidpipes constructed for supplying fluid material to the mixture inresponse to pressure on each side thereof from either the hot or coldliquid supply, an outlet from said chamber comprising a regulatingdevice for the liquid before it is mixed with the material from saidcontainer.

2. A washing machine comprising a casing having a Water inlet and anoutlet member having a water outlet passage, a collapsible soapreservoir having one wall mounted on said outlet member in said casingsaid outlet member extending through the wall of said reservoir andcommunicating with the interior thereof, a valve in said outlet memberfor controlling the flow of the soap solution to the water outletpassage, a tubular member having a screw threaded engagement with saidoutlet member for clamping said soap reservoir in place and a coverdetachably secured to said tubular member.

3. A washing machine comprising a casing having a water inlet and anoutlet member, said outlet member having passages for water and for asoap solution, a valve for controlling the passage of the soap solution,an extension tube from the upper end of said outlet member and anextension clamping tube secured to said outlet member, said casinghaving an inlet at its upper end, a collapsible soap reservoir held inplace in said casing on said extension tube by said clamping tube andhaving an entrance secured to the edge of the opening in said casing,said tubes formed with passageways communicating from the soap reservoirto the passage in said outlet member to permit soap to pass therethroughand a cover for clamping the entrance end of said soap reservoir.

4. In an apparatus of the character described the combination with hotand cold liquid supply pipes, of a mixing chamber into which said supplypipes empty, means for controlling the supply of liquid from each pipetotemper a mixture of liquids from said pipes in said chamber, a materialcontainer within said chamber and means for supplying fluid materialfrom said container to the mixture, the quantity of such materialsupplied varying with the mixture pressure, said chamber and containerhaving a cover in common, and means adjacent said cover by which thecontainer may be freed for removal.

5. A washing machine comprising a casin havino an outlet'inember withassages for water and soap solution, a valve for controlling the outletfor the soap solution, a throttling plate mounted on the outlet memberinside the casing for partially closing the water outlet passage andcontrolling the exit of water from the casing, a perforated raisedplatform above said throttling plate 'and a flexible soap reservoirsecured to said outlet member and supported on said platform within saidcasing a part of said outlet member extending into said reservoir anding in the top for the insertion of a bag, an 7 the-passage for soapsolution communicating with the interior thereof.

6. Apparatus of the character described comprising a casing having anopeninlet valve for admitting water to said caslng, an outlet member'havmg apassage for Water andhaving a neck pro ecting upwardly with asoap dischargepassage, a collapsible bag mounted in the casing on saidneck and having an inlet mouth, means for detachably securing the bottomof the bag on the neck of the outlet member comprising a clamping tube,and means for detachably securing the mouthof the bagin the opening inthe casing, and closing the opening and r the mouth the interior ofsaidbag communieating with the passage in said outlet memher.

7. Apparatus of the character described comprising a casing having anopening at the top with a detachable cover, hot and cold Water inletpipes connected to the casing, a Water outlet member connected to thebot-- tom of the casing, a collapsible bag mounted in the casing andhaving a mouth at its upper end secured in place by said cover andremov- I able independently of either of said pipe connections, thebottom of said bag being detachably connected to said outlet member,said outlet member having a passage discharging from said bag, and meansfor detachably securing the bag to the outlet member comprising aclamping tube detachably secured to the outlet member and a guide membersecured to the outlet member and extendingupvvard in the clamping tube.

8. Apparatus of the character described comprising a casing having avalve controlled Water inlet and an opening for inserting a bag, anout-let member secured to the bottom of the casing and having a Waterpassage and a soap passage, a collapsible 'bag substantial.- ly fillingthe inside of the casing and having an inlet mouth and an outlet, meansfor detachably securing said inlet mouth to the opening in the casingandclosing the opening, means for securing the outlet of said bag to theoutlet member, said parts being provided With a passage permitting soaptopass through the bag to the outlet member, a valve in the outletmember for controlling the discharge from the bagvthroughthe soappassage, the pressure of Water in the casing When the inlet valve isopenservingto compress the bag and slowly eject its contents when thevalve in the soap outlet is also open, and means for varying theeffective size of the Water outlet to control the back pressure in thecasing,

GHARLES'L; LAWRENCE. RAYMOND B., SHOEMAKER.

